I’m going to echo KTs post directly above mine without asking much simply because they put forth the most relevant and important advice. Please have a person who is level headed, experienced with the effects on people of consciousness changing drugs and who knows and can administer cpr.
5 is a powerful transformative tool, maybe the most powerful one out there and as such can deliver profound effects that can aid in one achieving change but also carries risks.
As far as dose, as with all psychedelics in my humble opinion, you want the full effect of a large dose. Getting your feet wet is something some people like to do and promote as a safety precaution but with this substance I personally think it’s going to be more or less worthless as anything other than a novelty unless you experience a total dissolution.
And if you do that, we look forward to your trip report and discussing what you experienced. You won’t be the same.
Good luck, be safe, and be good to you!
Sine experientia nihil sufficienter sciri potest -Roger Bacon
*γνῶθι σεαυτόν*